﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
/**/
namespace A95占位符
{
    class Program
    {
        static void Main(string[] args)
        {
            string name = "张三";
            int age = 20;
            Console.WriteLine(name + "今年" + age + "岁");
            Console.WriteLine("{0}今年{1}岁", name, age);
            Console.WriteLine($"{name}今年{age}岁");


            int a = 5;
            int b = 6;
            int c = a + b;
        }

      //  static void Test()
      //  {
      //      int a = 5;
      //      int b = 6;
      //      int c = a + b;
      //  }
    }
}
